[U-Boot] [PATCH v1] ls102xa: etsec: Select ge0_clk125 for eTSEC clock muxing as default

[Alison Wang]

This patch reverts to use ge0_clk125 for eTSEC clock muxing. For SAI and
CAN which are pin multiplexed with RGMII1 in EC1 of RCW, ge2_clk125 will
be used via hwconfig.

Signed-off-by: Bhupesh Sharma <bhupesh.sharma at freescale.com>
Signed-off-by: Alison Wang <alison.wang at freescale.com>
---
 arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h |  2 ++
 board/freescale/ls1021aqds/ls1021aqds.c           | 35 ++++++++++++++++++++++-
 2 files changed, 36 insertions(+), 1 deletion(-)

diff --git a/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h b/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h
index 697d4ca..afdccdc 100644
--- a/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h
+++ b/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h
@@ -105,6 +105,8 @@ struct ccsr_gur {
 
 #define SCFG_ETSECDMAMCR_LE_BD_FR	0xf8001a0f
 #define SCFG_ETSECCMCR_GE2_CLK125	0x04000000
+#define SCFG_ETSECCMCR_GE0_CLK125	0x00000000
+#define SCFG_ETSECCMCR_GE1_CLK125	0x08000000
 #define SCFG_PIXCLKCR_PXCKEN		0x80000000
 #define SCFG_QSPI_CLKSEL		0xc0100000
 
diff --git a/board/freescale/ls1021aqds/ls1021aqds.c b/board/freescale/ls1021aqds/ls1021aqds.c
index f08e54f..f4a5dda 100644
--- a/board/freescale/ls1021aqds/ls1021aqds.c
+++ b/board/freescale/ls1021aqds/ls1021aqds.c
@@ -48,6 +48,12 @@ enum {
 	MUX_TYPE_SD_PC_SG_SG,
 };
 
+enum {
+	GE0_CLK125,
+	GE2_CLK125,
+	GE1_CLK125,
+};
+
 int checkboard(void)
 {
 #ifndef CONFIG_QSPI_BOOT
@@ -177,7 +183,6 @@ int board_early_init_f(void)
 
 #ifdef CONFIG_TSEC_ENET
 	out_be32(&scfg->etsecdmamcr, SCFG_ETSECDMAMCR_LE_BD_FR);
-	out_be32(&scfg->etsecmcr, SCFG_ETSECCMCR_GE2_CLK125);
 #endif
 
 #ifdef CONFIG_FSL_IFC
@@ -244,6 +249,32 @@ void board_init_f(ulong dummy)
 }
 #endif
 
+void config_etseccm_source(int etsec_gtx_125_mux)
+{
+	struct ccsr_scfg *scfg = (struct ccsr_scfg *)CONFIG_SYS_FSL_SCFG_ADDR;
+
+	switch (etsec_gtx_125_mux) {
+	case GE0_CLK125:
+		out_be32(&scfg->etsecmcr, SCFG_ETSECCMCR_GE0_CLK125);
+		debug("etseccm set to GE0_CLK125\n");
+		break;
+
+	case GE2_CLK125:
+		out_be32(&scfg->etsecmcr, SCFG_ETSECCMCR_GE2_CLK125);
+		debug("etseccm set to GE2_CLK125\n");
+		break;
+
+	case GE1_CLK125:
+		out_be32(&scfg->etsecmcr, SCFG_ETSECCMCR_GE1_CLK125);
+		debug("etseccm set to GE1_CLK125\n");
+		break;
+
+	default:
+		printf("Error! trying to set etseccm to invalid value\n");
+		break;
+	}
+}
+
 int config_board_mux(int ctrl_type)
 {
 	u8 reg12, reg14;
@@ -253,6 +284,7 @@ int config_board_mux(int ctrl_type)
 
 	switch (ctrl_type) {
 	case MUX_TYPE_CAN:
+		config_etseccm_source(GE2_CLK125);
 		reg14 = SET_EC_MUX_SEL(reg14, PIN_MUX_SEL_CAN);
 		break;
 	case MUX_TYPE_IIC2:
@@ -262,6 +294,7 @@ int config_board_mux(int ctrl_type)
 		reg14 = SET_EC_MUX_SEL(reg14, PIN_MUX_SEL_RGMII);
 		break;
 	case MUX_TYPE_SAI:
+		config_etseccm_source(GE2_CLK125);
 		reg14 = SET_EC_MUX_SEL(reg14, PIN_MUX_SEL_SAI);
 		break;
 	case MUX_TYPE_SDHC:
-- 
2.1.0.27.g96db324